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Posted by **gigi** on Tuesday, September 13, 2011 at 6:28am.

- physics -
**drwls**, Tuesday, September 13, 2011 at 7:06amUse the same method as this question's answer. The numbers are different.

http://www.jiskha.com/display.cgi?id=1254706350

Add the non-driving time to the driving time and convert to hours. Then divide the total distance by that total time in hours.

- physics -
**Anonymous**, Tuesday, September 13, 2011 at 7:29amtime

34.9+12.8+50.4+18.8=116.9/60=19.483hrs

distance

76.5+96.7+37.7=210.9

210.9km/1.1083hrs=190.2914km/h ??????

done it so many times am so confuse!!!

- physics -
**drwls**, Tuesday, September 13, 2011 at 7:36amWhy are you using 1.1083 hr for total time? You already computed 19.483 hr, which should have been 1.9483 hr.

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